利用古文字材料研究上古音,应该先对古文字资料进行分期、分域。通过比较秦楚用字上的不同,可以看出楚方言比秦方言更保守。楚方言保留了成套的复声母,不仅有*Cr-、*Cl-型,还有*S-冠、*m-冠、*n-冠、*h-冠、*■-冠和*-冠,而秦方言中的复声母却几乎消失殆尽。楚方言中的复声母大部分沿袭自西周雅言,但也有一部分来自楚地土著民族语言。 Using ancient writing materials to study the ancient sounds, the ancient writing materials should be staged and subdivided. By comparing the different words of Qin Chu, we can see that Chu dialect is more conservative than Qin dialect. Chu dialect retains a complete set of polyphony, not only * Cr -, * Cl- type, there are * S-crown, * m- crown, * n- crown, * h- crown, * ■ - crown and * Crown, and the polyphonic mother in the Qin dialect almost disappeared. Most of the dialects in Chu dialect inherited from the Western Zhou dynasty, but some also came from the indigenous languages ​​of Chu.